Alexandros comments on Beyond Optimization by Proxy - Less Wrong

11 Post author: Alexandros 27 May 2010 01:16PM

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Comment author: Alexandros 27 May 2010 02:09:44PM 2 points [-]

I have been toying with the idea of making a catalogue of all the instances of OPB that have been identified. Software engineering was in my mind, but not nearly to the amount of detail that you set it to. I suppose DVCS systems like Git also take software enginering (open source especially) in that direction.

Also, I love this phrase:

Another implication is that a posteriori control over the quality of decisions is preferred over a priori control: feedback trumps planning.

It really gets through very clearly. Don't be surprised if I steal it :)

Comment author: CronoDAS 27 May 2010 10:57:47PM 3 points [-]

Classic example of optimization by proxy: "fill-in-the-bubble" standardized tests taken by students, such as the SATs.

Comment author: RobinZ 28 May 2010 01:59:01AM 3 points [-]

Not just fill-in-the-bubble - any standardized test, really.

Comment author: CronoDAS 28 May 2010 06:19:45AM 3 points [-]

Driving tests are pretty good proxies. Except for the part where they make you parallel park between poles instead of between cars.

Comment author: nerzhin 28 May 2010 07:58:20PM 2 points [-]

This is a great example.

I interpreted RobinZ to mean "any sit down with paper and a writing instrument" test. Driving tests are "standardized" in some sense, but still seem to be good proxies in a way that the SAT is not.

Comment author: RobinZ 28 May 2010 08:00:25PM 1 point [-]

That is what I meant, yes.

Comment author: Douglas_Knight 29 May 2010 04:28:07AM 0 points [-]

Driving tests are "standardized" in some sense, but still seem to be good proxies in a way that the SAT is not.

I think the SAT is a better proxy than driving tests. I see very little effort to produce good driving tests, nor incentive to do so.